Compilare: main.cpp: In function 'void lee(int, int, int (*)[102])': main.cpp:27:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 27 | auto [x, y] = cd.back(); | ^ main.cpp: In function 'int main()': main.cpp:46:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | for(int j = 0; j < str.size(); j++){ | ~~^~~~~~~~~~~~